Biology, 14.07.2019 07:30 geraldmorgan5580
How does a viral immunization prevent disease? a. the altered virus remains in the body and outcompetes the natural version if the virus returns. b. memory cells that develop in response to the weakened virus will respond more quickly if the virus returns. c. the nonspecific immune response will prevent the virus from entering the body. d. the altered virus remains in the body and recognizes itself if the virus returns.
Answers: 1
Biology, 22.06.2019 00:20
1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.
Answers: 1
Biology, 22.06.2019 08:20
Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.
Answers: 2
Biology, 22.06.2019 12:40
18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions
Answers: 1
How does a viral immunization prevent disease? a. the altered virus remains in the body and outcom...
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